Partial damage of
wall panels and fragments of light roofing over Turbine hall of Chernobyl NPP
Unit 4 near Shelter occurred at 2:03 p.m. on 12 February 2013.
Damage area is
approximately 600 m2. The light roofing works were carried out in
post accident period (after construction of Shelter) and do not constitute a
part of Shelter constructions.
Location of damage in
turbine hall of Chernobyl NPP unit 4
No violation of conditions and limits of safe operation in accordance with Technological regulations 1Р-ОУ was revealed. According to the radiation monitoring data there are no changes in radiation situation at the industrial site of Chernobyl NPP and the Exclusion Zone. Current radiation situation is 14-20 mR/hour. There were no injuries.
At the request of the State Nuclear Regulatory Inspectorate of Ukraine (SNRIU) measurements of air aerosol activity were carried out
near the damaged wall – no changes detected.
Damaged wall of Turbine hall of Chernobyl NPP Unit 4 - view
waterside pump station
Damaged roof of Turbine hall of Chernobyl NPP Unit 4
SNRIU issued an instruction to SSE “Chernobyl NPP” to carry out in accordance with «Provisions on
investigation procedures and recording of violations and deviations in
Chernobyl NPP operation»
an investigation of abnormal situation that occurred on 12 February 2013 in Turbine hall of Unit 4. Also, at the
request of SNRIU, resident SNRIU representative at ChNPP
will be included in special investigation commission.